首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   32473篇
  免费   1184篇
各国政治   1401篇
工人农民   1266篇
世界政治   2556篇
外交国际关系   1101篇
法律   19919篇
中国共产党   5篇
中国政治   173篇
政治理论   6974篇
综合类   262篇
  2020年   448篇
  2019年   547篇
  2018年   670篇
  2017年   801篇
  2016年   848篇
  2015年   614篇
  2014年   697篇
  2013年   3323篇
  2012年   772篇
  2011年   857篇
  2010年   738篇
  2009年   781篇
  2008年   870篇
  2007年   834篇
  2006年   857篇
  2005年   783篇
  2004年   785篇
  2003年   784篇
  2002年   744篇
  2001年   1201篇
  2000年   1113篇
  1999年   852篇
  1998年   543篇
  1997年   474篇
  1996年   405篇
  1995年   393篇
  1994年   452篇
  1993年   421篇
  1992年   631篇
  1991年   690篇
  1990年   611篇
  1989年   630篇
  1988年   605篇
  1987年   615篇
  1986年   643篇
  1985年   620篇
  1984年   534篇
  1983年   558篇
  1982年   422篇
  1981年   404篇
  1980年   319篇
  1979年   435篇
  1978年   291篇
  1977年   256篇
  1976年   238篇
  1975年   206篇
  1974年   253篇
  1973年   241篇
  1972年   217篇
  1970年   174篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
61.
He is author of many works about social class, including The Protestant Establishment Revisitedand Philadelphia Gentlemen,both published by Transaction Publishers.  相似文献   
62.
63.
New York State experimented with replacing their litigation-oriented system for achieving toxic dump site cleanup with one promising to lower transaction costs through alternative dispute resolution. Our analysis of outcomes is informed by three generations of implementation work focusing on (1) the motivations and incentives shaping individual behavior, (2) the larger organizational and political factors associated with variation across cases, and (3) the generic properties of policy implements. This mosaic approach to explanation produces, we believe, a more lifelike picture of use to policy makers for understanding the dynamic and interrelated nature of their choices.  相似文献   
64.
The EPA implements its policy of exhaust emission control by setting standards specified in terms of grams of pollutants per mile traveled. As a result, the tax must first restrain the vehicle miles traveled (VMT) if it is to have an impact on emission at all. EPA's choice of miles traveled as the medium through which its policy of pollution control must run is unfortunate, because travel is an activity that people resist giving up. This is reflected in a low long-run price elasticity of travel demand. Consequently, it takes substantial increases in the gasoline tax to make an impact on long-run travel demand. Simulation results show that under an alternative policy option, where EPA's standards are specified in terms of grams of pollutant per gallon of fuel burned, the same long-run reduction in exhaust emissions achievable today can be achieved (at an even higher level of confidence) with less than one-tenth of the increase in gasoline price required under the existing policy regime.  相似文献   
65.
66.
67.
The rare event of a corpse immersed in glacier ice becoming exposed on a glacier surface is closely connected with the glaciological conditions at the scene and the site of the accident. Provided that the time since death is known, certain questions relative to the circumstances of a mountain accident can only be answered by considering glaciological aspects. How the scene of an accident can be reconstructed by inference from the site of discovery is discussed by means of three exemplary cases that occurred on Tyrolean glaciers (Austria) during the past 40 years: (1) Two corpses were discovered close above the equilibrium line in the accumulation area after 25 years. The two victims had fallen down a rock face after the breaking off of a cornice and had come to rest in the uppermost part of the accumulation area. (2) A victim was discovered in the lower ablation area 8 years after falling down a crevasse in the middle part of the ablation area. (3) A female alpinist was discovered at the very end of the glacier after 29 years; it was concluded that the accident must have happened in the accumulation area.  相似文献   
68.
In a case of first impression, the Trademark Trial and AppealBoard of the US Patent and Trademark Office has held that theflavour orange is not registrable for use with quick-dissolvingantidepressant tablets and pills.  相似文献   
69.
Newspaper juries     
This article reports on a field experiment on the effect of media information on people’s attitudes towards the justice system. For the duration of a year a Dutch local newspaper took small groups of readers, called ‘newspaper jurors’, to court sessions of criminal cases and subsequently reported on their experiences and perceptions. Using a quasi-experimental design, we examined whether an attitude change in the general reader population of this particular local newspaper occurred as a result of the jury’s newspaper reports. Findings show that, after the treatment interval of 1 year, no attitude change in the general reader population could be identified that was absent in the control group.  相似文献   
70.
This paper links the policy context regarding S&T parks to the objectives and characteristics of the established parks and incubators in a relatively small, converging European country. S&T parks and incubators in Greece during the past decade and a half have gradually shifted in terms of ownership and management from university/research institute to the private sector and in terms of financing from public to private funds, also involving the provision of seed capital and access to venture capital. This gradual shift toward more private engagement has created a variety of models out of which, it is hoped, successful innovative companies will emerge in larger numbers than in the past.
  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号